LG C5 vs Samsung QN90D
LG C5 vs Samsung QN90D: pick by room, not by spec sheet
These two are the most-cross-shopped TVs of 2026. LG C5 OLED $1,499 vs Samsung QN90D Mini-LED $1,799. The answer is not which is better, it's which is right for your room. Dark room: C5. Bright room: QN90D.
LG C5 vs Samsung QN90D head-to-head
| Spec | LG C5 | Samsung QN90D |
|---|---|---|
| Panel | WOLED (LG Display) | Mini-LED LCD (Samsung) |
| Peak Nits (10% window) | 1,300 nits | 3,000 nits |
| Black level | 0.0000 nits (perfect) | 0.0008 nits (very deep) |
| Local dimming zones | 8.3 million (per-pixel) | ~1,000 zones |
| Blooming | None | Faint in extreme scenes |
| Burn-in risk | Low (modern) | None |
| Response time | 0.1 ms | 2.1 ms |
| Input lag (Game Mode) | 1.3 ms | 5.8 ms |
| HDMI 2.1 ports | 4 | 4 |
| Dolby Vision support | Yes (Gaming too) | No (HDR10+ only) |
| Anti-reflective coating | Semi-glossy | Matte |
| Operating system | webOS 25 | Tizen OS 25 |
| Warranty (burn-in) | 2 yr standard | Not applicable |
| 65 inch USD street price (mid-2026) | $1,499 | $1,799 |
Room-first decision tree
Dark
Dim or dark room, evening viewing, blackout curtains: LG C5 OLED. Perfect blacks and infinite contrast win.
Mixed
Some windows, mix of daytime and evening: Toss-up. If movies dominate, LG C5. If sports dominate, Samsung QN90D.
Bright
South-facing windows, conservatory, sun-drenched: Samsung QN90D Mini-LED. 3,000 nits and matte coating fight glare.
C5 vs QN90D picks
C5 vs QN90D questions answered
Should I buy LG C5 OLED or Samsung QN90D Mini-LED?+
Buy the LG C5 if your TV room is dim or dark and you prioritise picture quality (perfect blacks, infinite contrast, 0.1ms gaming response). Buy the Samsung QN90D if your room has bright windows or strong overhead lights, you watch a lot of sports, or burn-in worry is non-negotiable. The C5 is $300 cheaper at 65 inch ($1,499 vs $1,799).
Is OLED or Mini-LED better for sports in 2026?+
Mini-LED wins for sports in bright rooms because sports broadcasts happen during daytime and Mini-LED has 2 to 3 times the peak brightness needed to fight glare. OLED wins for sports in dim rooms because of the cleaner motion handling (0.1ms vs 2ms response). For a typical Sunday football setup with afternoon sun, Samsung QN90D Mini-LED is the safer pick.
Does the Samsung QN90D get bright enough to compete with OLED?+
The Samsung QN90D hits 3,000 nits peak vs the LG C5's 1,300 nits, so on raw brightness Mini-LED is 2 times the OLED. However, OLED's perfect blacks mean its actual contrast in a dark room is infinitely higher than any Mini-LED can match. The right question is not which is brighter, but which is brighter in your specific room conditions.
Will I see blooming on Samsung QN90D?+
Yes, occasionally. The QN90D has around 1,000 dimming zones and very good local dimming algorithms, but in scenes with bright objects on dark backgrounds (subtitles on letterbox bars, starfields, end credits) you will see a faint glow around bright elements. This is invisible on OLED because each pixel can be fully off. For most content the blooming is unobtrusive; for film with letterboxing it is more visible.
Sources: LG (lg.com), Samsung (samsung.com), RTings C5 and QN90D reviews. April 2026.